Hook-off for wells



' Oct. 7, 1930. MARKEY 1,777,927

HOOK-OFF FOR WELLS Filed March 11, 29

mrrleyfiMmiiey INVENTOR Arman 7 UNtt tl 45 under side thereof and havingone end suffi- Patented Oct. 75 1 930 7 I t v Q l 1 lfiiATES PATENTOFFICE.

HARLEY I-I. MABQKEYQ or olman, Lou siana l HOOK-OFF W'ELIhS applicationfiled-Maren 11., 1929. Seria1N0 346,203. This invention relates to newand improved through spaced openingsQOin thetimber 11, meansforattaching anddetaching the hooks are threaded for engagement withnuts 21 and pull rods of well rigging and the like a whereby slidingmovement it of the 'U-bolt- An object ofthe invention comprehendsthrough the openings 20 in the cross bar 11 Another object of theinvention contemboltis preferably located beneath thepull rod plates adetachable element for the pull rod 12, the purpose of such dispositionwill be Afurther object of the invention embodies presently apparent inthe following descripan operating member for the detaching eletion andoperation of my invention 1o ment. y 1 An extensionor handle 22',arojecting from GO More specifically stated the operating one end of theU-bolt 19, willprovide the member is provided with a handle wherebymeans of raising the yoke end of the U-bolt in the well rod may bedisconnected without parallelism with the pullrod 12 from the subjectingthe hands to serious injury. side of the cross bar 11 adjacent thefstir-15 With the above and other objects in view,- Trup15. 65

the invention further consists of the follow- Hook members 23, formed orotherwise ing novel features and details of construction, provided uponthe rod member 18, at spaced to be hereinafter more fully describechillusintervals inthe length thereof, are downtrated in the accompanyingdrawing and 'wardly and outwardly curved to prevent disy I 20 pointedout in the appended claim. placement of the yokeend of the U-bolt 19 7In the drawing 7 when engaged therewith. 1 Figure 1 is a perspectiveview of the hook In Figure 4: of my drawing I have illustratand well rodin operating positions. a ed a modified form of connection for the U-Figure 2 is a view similar to Figure 1 with bolt in the nature of sleevemembers 24- ar 25 the invention in use showing the well rod ranged atspaced intervals'upon the pull rod, 75

detached from the hook. V after the manner of thehook members 23, andFlgurefi 1s a top plan v1ew'of a portion of which are provided withopen. hooks 25 dethe hook or detaclnng dev ce. pending therefrom andwhich are also adapt- Figure 4 is an elevation of a modified form forselective engagement with theryoke 1- of connection for the detaching orhook oft 'jlgsed, d f th U-b 1t19 w r 0 device. p When it isdesired touncouple or otherwise Figure 5 is a side elevation of the modified dingag th adjac nt nd of th ull-rod form of my invention, i n i 12 andreach arm 17 namely,the stirrup 1 1 Referring to the'drawing in detailwherein nd h k 16 th f th gperatof t flhwait like charact s 1 referencedenote until the pull rod is shifted its utmost 01 m p g P the referencechamctels 1O imum through the opening 13in the cross bar indicate,Spaced stamliblfds y g a CTOSS' 11 towardthe hook 16 At such time theexbar ember 11 torroilde a s a P1 tension or handle 22 is engaged anddepressed rod 12 passed through an en a 13 e ma, rock the arms of theU-bolt within the open 40 A pi generally deslgnated a at 18 ings 20 inthe cross bar 11 whereby the closed adapted to engage h Y 15 or yoke endof the U-bolt 19 will be disposed with. the hook extremity 16 of a leacharm 1 in parallelism with the r member 18 and A rod member 18 is clampedwelded or i i 7 otherwise secured to the nullrod 12 upon the 9 dd? and im l path QY -t OI the ad acent hookinembers23 or 25.

ciently spaced from the adiacent side of the Such ge e t will l d g t Qcross bar or timber '11 whereby the pull rod o the P l e i o d after fmay oscillate to its maximum unrestricted by hook 16 is shifted towardthe stump 141, the the presence of said rod member. adjacent portion ofthe pull rod 12 is de the provision ofa guide for the pull rod. will berestricted in one direction. Said U- 55 50 A U-bolt 1.9,having the endsthereof passed pressedand saidhook will ride out 'of the yoke or looplet to occupy the Figure 2 position tively engaged with the U-bolt torelease the and terminate the uncoupling process. stlrrup from the reacharm, and a handle In all previous forms of uncoupling or for the U-bolt.hook off devices, the stirrup is generally used to hook the well off.This is done by hooking into the stirrup or placing a block between thestirrup and the hook ofi post.

The modification of my invention shown in Figure 5 of the drawingembodies the following characteristics. I

A rod member or shaft 26 is preferably fixedly connected, by anysuitable means,to a cross bar, not shown, and located in spaced relationto a well rod, such as indicated at 27 and immediately beneath same.

An ear 28 of the triangular shape is provided with an enlarged portion29 upon one side of the base therefor, as shown in dotted lines inFigure 5 of thedrawing. One end of the enlarged portion 29 is tapped toaccommodate the adj accnt threaded end of the shaft 26.

A handle member 30, pivotally mounted, as at 31, upon the same side ofthe ear 28, with relation to the enlarged portion 29, carries a weightedarcuate shaped eccentric 32 having its rounded face serrated orotherwise roughened for biting engagement with the adjacent uppersurface of the pull rod 27. 7

By reason of the fact that the enlarged portion 29 of the ear 28 is threadedly engaged with the adjacent end of the shaft 26, a half turn of theenlarged portion upon the shaft in either direction will dispose thelever and eccentric therefor in its respective working positions.

lVhe-n the pull rod 27 is shifted for oscillatory movement toward thecross bar, not shown, that is, after the modified form of hook offdevice is set up inworking position, said rod will travel its limit andupon the slightest retrograde movement, the arcuate shaped face of theeccentric will bitingly engage the adjacent upper surface of the pullrod and force the under side thereof against the upper surface of theenlarged portion 29. The hook upon the extremity of the reach arm willthen ride out of the stirrup in the ad jacent end of the pull rod as thelatter dropsor is sprung down.

The invention is susceptible of various changes in its form, proportionsand minor details of construction, and the right is herein reserved tomake such changes as properly fall within the scope of the appendedclaim.

Having thus described the invention, what is claimed is A hook-01fdevice for well rods comprising a cross bar, a pull rod slidably mountedthereon, a reach arm, a stirrup carried upon one end of the pull rod forconnection with the reach arm, a U-bolt mounted for rocking movementupon the cross bar adjacent the reach rod, hook members carried by andoperable in conjunction with the pull rod selec- HARLEY H. MARKE Y.

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